chore(): add migration note

Author: liamdebeasi

CHANGELOG.md

@@ -5,6 +5,7 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 # [7.0.0](https://github.com/ionic-team/ionicons/compare/v6.1.3...v7.0.0) (2023-03-07)
 
+**Migration Note:** Developers should ensure that their `<ion-icon>` usages have either `aria-label` or `aria-hidden` to avoid accessibility issues. See https://ionic.io/ionicons/usage for more information.
 
 ### Bug Fixes
 
@@ -13,18 +14,6 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 
 
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-# [7.0.0](https://github.com/ionic-team/ionicons/compare/v6.1.3...v7.0.0) (2023-03-07)
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-### Bug Fixes
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-* **icon:** remove auto-generated aria-label ([#1170](https://github.com/ionic-team/ionicons/issues/1170)) ([98975ec](https://github.com/ionic-team/ionicons/commit/98975ec0f54b825c33f528683834a5e38298d598))
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 ## [6.1.3](https://github.com/ionic-team/ionicons/compare/v6.1.2...v6.1.3) (2023-02-09)